Buenos Aires
203 km²
Copenhagen
91 km²
Argentina
Denmark
Area Comparison
Buenos Aires is 2.2x larger than Copenhagen
Population Comparison
Buenos Aires has 4.6x more people than Copenhagen
In terms of area, Buenos Aires is 2.2x the size of Copenhagen. Buenos Aires spans 203 km² (78 mi²) while Copenhagen covers 91 km² (35 mi²) — a difference of 112 km². You could fit Copenhagen inside Buenos Aires approximately 2 times.
To put Buenos Aires's size in perspective, its area of 203 km² is roughly the same size as Amsterdam. Meanwhile, Copenhagen at 91 km² is about 1.2x smaller than Paris (city proper).
Picture Buenos Aires another way: its area is large enough to fit about 28,000 American football fields, 100 times the area of Monaco, or 60 times the area of Central Park. Copenhagen, by comparison, equals about 13,000 American football fields, 190 times the area of Vatican City, or 45 times the area of Monaco.
Buenos Aires, officially the Autonomous City of Buenos Aires, is the capital and largest city of Argentina. It is located on the southwest of the Río de la Plata. Buenos Aires is classified as an Alpha− global city, according to the GaWC 2024 ranking. The city proper has a population of 3.1 million and its urban area has a population of 16.7 million, making it the 21st most populous metropolitan area in the world.
Known as "Paris of South America", Buenos Aires covers 203 km² with a population of 3.1 million. The city was established in 1536. Buenos Aires is known for La Boca's Caminito, Recoleta Cemetery, Teatro Colón, among other attractions. The city's main transit system is the Buenos Aires Subte.
Buenos Aires is classified as an Alpha− global city according to the GaWC 2024 ranking.
Copenhagen is the capital and most populous city of both the country of Denmark and the wider Kingdom of Denmark, with a population of 667,000 people in the municipality and 1.4 million in the urban area. The city is situated mainly on the island of Zealand (Sjælland), with a smaller part on the island of Amager. Copenhagen is separated from Malmö, Sweden, by the Øresund strait. The Øresund Bridge connects the two cities by rail and road.
Also known as "City of Spires", Copenhagen has an area of 91 km² and is home to 0.7 million people. The city dates back to 1167. Visitors come for The Little Mermaid statue, Tivoli Gardens, Nyhavn waterfront, and much more.
Copenhagen sits mainly on the island of Zealand, with a smaller portion on the island of Amager.
Buenos Aires has a population density of 15,074 people per km² — an extremely dense urban environment. Copenhagen, with 7,363 people per km², is a densely populated city. Buenos Aires is noticeably denser, packing 2.0 times more people per square kilometer.
Size Ratio
Copenhagen fits inside Buenos Aires ~2 times
Density Gap
Buenos Aires is 2.0x more densely populated
History
Copenhagen is ~369 years older
Buenos Aires covers 203 km². Cities with a similar urban footprint include Helsinki (214 km²), Amsterdam (219 km²), Stockholm (188 km²), Osaka (225 km²), or Boston (232 km²).
Copenhagen covers 91 km². Cities with a similar urban footprint include Zurich (88 km²), Lisbon (100 km²), Barcelona (101 km²), Paris (105 km²), or Vancouver (115 km²).
The straight-line distance from Buenos Aires to Copenhagen is 12,066 km (7,498 miles), with an estimated flight time of ~14h 42m.
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